| Zip Code : | 66543 |
| City : | Vassar |
| County : | Osage County |
| State : | Kansas (KS) |
| Land Area : | 8.76 sq mi |
| Water Area : | 0.01 sq mi |
| Latitude : | 38.6449546 |
| Longitude : | -95.5928107 |
| Population (2010): | 725 |
| Population Estimate (2012) : | 1,004 |
| Population Density : | 82.81/sq mi |
| Housing Units (2012) : | 411 |
| Median Household Income (2012) : | $58,167 (Kansas : $51,273, USA : $53,046) |
| Median Family Income (2012) : | $58,750 (Kansas : $64,731, USA : $64,585) |
| Median House Price (2012) : | $113,000 (Kansas : $127,400, USA : $181,400) |